●below意为在下,在下面,是above的反义词。
●beneath是on的反义词,指在某物正下方并接近或接触某物。
80.D词义辨析题。表示用观测,要用动词0bserve,所以D正确。study和research指系统研究,survey指调查,检查,均排除。
81.B词义辨析题。a number of表示大量的,后跟可数名词,符合句意,所以B正确。plenty of意为大量的,后既可跟可数名词,又可跟不可数名词,但没有a plenty of这种用法;a deal of表示大量的,但不能修饰可数名词;也没有a supply of这样的用法,所以排除A、C、D项。
82.B逻辑衔接题。结合句意可知,这里要用表原因的连词来引导原因状语从句,所以B正确。
考点
●seeing,considering,now that等引导的从句,以及很多用在形容词之后的由that引导的从句也可起到原因状语的作用,如:She was glad that she had controlled herself.她很高兴她做到了自制。
83.A逻辑衔接题。分析句子结构可知,此处应填入一个能引导定语从句的关系代词,由于先行词是canals,所以A正确。注意,不要看到as,就想到asas结构而错选。这里的as是the same as结构的一部分。
84.C词义辨析题。exact意为准确的,definite意为明确的,certain意为确信的,decisive意为决定性的。exact和definite用于修饰物,所以排除;decisive不符合句意,也排除,故选C。
考点
●exact相当于strictly correct,强调丝毫不差,比accurate的词义更强。
●definite多强调肯定的,不容置疑的,一定的。
●certain指一定的,必然的,有把握的,和sure的意思相同,但语气更强。
85.B惯用搭配题。take photographs是惯用搭配,意为拍照,所以B正确。
86.D词义辨析题。discover强调发现抽象的事物,符合句意,所以D正确。find常指发现具体的事物,expose指暴露,uncover指揭开,均应排除。
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